Elevator.



C. G. PFEIFFER & G. W. PARKER, JR.

ELEVATOR.

APPLICATION FILED APR. 27. 1912.

Patented Jan. 16,1917.

3 SREETS-SHEET l Mu gm C. G. PFEIFFERfiL G. W. PARKER, JR.

ELEVATOR.

APPLICATION FILED APR. 22. 1912.

3 SHEETS-SHEET 2.

ya/MW M C. G. PFEIFFER & G. W. PARKER, JR.

ELEVATOR.

APPLICATION man APR. 21, m2.

F w. WW 1 6d n; 7 1% w T dw %& m m

m w h 00 n are Arno rrrc.

CHARLES GT rrnrrrnn. AND GEORGE w. PARKER, an, or rnrnannnrnm,

PENNSYLVANIA.

ELEVATOR.

Specification of Letters Patent.

Patented Jan. 16, 19th Application filed April 27, 1912. Serial No. 693,708.

To all whom it may concern Be it known that We,C1L-\RLES G. PFEIFFER and GEORGE W. PARKER, J r., both of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Elevators, whereof the following is a specification, reference being had to the accompanying drawings.

The invention relates more particularly to an elevator which consists of an endless carrier having a plurality of buckets thereon, which endless carrier is so disposed that the buckets may be used for lifting coal or the like from a pile, and discharging the same into a wagon or other receiving receptacle.

Anobject of the invention is to provide a conveyer of the above character, together with a supporting frame therefor, in which all of the parts are mounted on a supporting axle, so as to be substantially balanced thereon.

A further object of the invention is to provide means for adjusting the entire frame and conveyer about the axis of the axle, so that the receiving end of the conveyer may be fed into the pile 'from which the coal or other material is being lifted.

A still further object of the invention is to provide an elevator of the above character with an auxiliary supporting wheel on which the same may rest, together with folding handles which are disposed on the opposite side of the axle from the receiving end of the conveyer, so that the entire elevator may be balanced on the axle and moved about through the aid of the handles.

A further object of the invention is to provide an elevator of the above character with delivering chutes which are so arranged that the material lifted by the elevator may be delivered either to a wagon or into bags.

These and other objects will in part be obvious, and will in part be hereinafter more fully described.

In the drawings which show by way of illustration one embodiment of the invention, Figure I, is a side elevation of an elevator embodying my improvements, also showing in dotted lines the position of the same relative to a wagon.- Fig. II, is a rear view thereof. Fig. III, is a sectional detail showing the manner of delivering the coal into the chutes and the spouts arranged for bagging the coal. Fig. IV, is a detail in sect on, showing the pivoted bracket for the auxiliary supporting wheel and the adjusting means therefor. Fig. V, is a rear view of the same. Fig. VI, is a sectional detail of one of the buckets.

The invention consists generally of a main supporting frame, on which is mounted an endless carrier which is provided with a plurality of buckets. A motor for driving the conveyer is also mounted on the frame. A chute is carried at the upper end of the frame, and so disposed that the buckets deliver their contents into the chute. This chute extends laterally from the frame, and is so positioned that the contents of the chute may be delivered to a wagon. An auxiliary chute leads from the main chute to such position that the contents thereof may be readily delivered to a bag. The entire frame and conveyer with the operating mechanism therefor, is mounted on a single axle, which is supported by wheels; and the parts of the frame are disposed on opposite sides of the axle, so as to substantially balance one another, and the elevator is, therefore, substantially balanced on the axle. An auxiliary supporting wheel is connected to a pivoted bracket which is attached to the frame, and said bracket may be adjusted relative to the frame, so as to vary the angle of the conveyer, and thus feed the receiving end of the conveyer into the pile without varying the position of the supporting wheels for. the elevator.

Referring more'in detail to the drawings, the elevator consists ofa main frame which is formed with uprights 1, 1, and horizontal beams 2, 2, which are spaced laterally, and are suitably connected together by cross braces. Inclinedbeams, 3, 3, are connected to the outer ends of the horizontal beams 2, and the Vertical beams 1. These supporting beams of the frame are arranged as herein shown, in the form of a right angle triangle. The beams 3, 3, are connected by suitable cross braces 4. Mounted at the upper end of the two side frames which are constituted by the beams above referred to, is a shaft 5, which carries a gear 6, on the outer end thereof. This gear 6, meshes with a pinion 7, mounted in suitable journals carried by the side frames. The pinion 7, is mounted on a shaft 8, which carries a pulley 9. Se-

. cured to the horizontal beams of the frame,

ries a sprocket wheel 13. The shaft 5, also carries a sprocket wheel 14. An endless carrier 15, engages the sprocket wheels 13, and v 14. This endless carrier is provided with a plurality of buckets 16, which are rigidly connected to the links of the carrier. As clearly shown in Fig. VI, each of these buckets consists of a bottom portion 17, side portions 18, and a rear end portion 19.

It will readily be seen that as the endless carrier travels, the buckets will be carried by the same and will be caused to dip into a pile of coal or the like, whereby the buckets will be filled and carried along by the carrier to the top end of the frame. The frame, as above noted, is inclined so that the lower end thereof projects forwardly, and may be positioned so as to engage the pile of coal. The entire frame is mounted on an axle 21, which is provided with suitable braces 22. This axle carries at each end a supporting Wheel 23. The side beams of the frame project slightly below the lower end of the conveyer, and are provided with an auxiliary supporting wheel 24.

The frame carries at its upper end a receiving chute 25, which is formed of side members rigidly secured to the vertical beams 1, 1, of the frame. The side members are connected by suitable braces and the bottom of the chute is formed by a screen 26. The lower end of the chute is provided with a pivoted spout 27, which is formed of side members 28, and bottom portion 29. This spout is pivoted intermediate its ends as at 30, to the lower end of the chute. The screen 26, terminates short of the lower end of the chute 25, and the spout is so pivoted that the bottom thereof, when said spout is in line with the screen, forms an extension of the screen. When the spout is turned at an angle to the chute, as shown in Fig. III, the spout closes the end of the chute, and an opening is formed which will cause the contents of the chute to discharge directly from the end of the screen through the bottom of the chute.

A pivoted bail 27 is provided for holding the spout in the position shown in Fig. III.

An auxiliary chute 31, connects with the outer end of the chute 25, and is in line with the opening formed therein, as above referred to. This chute is formed with an inner wall 32, and with an outer wall 33; Near the lower end of the auxiliary chute 31, is a discharge spout 34. This discharge spout is controlled by a gate 35, which is pivoted to the spout, and is provided with a handle 36, whereby the gate may be manipulated. The lower-part of the inner wall 32, of the auxiliary chute is placed at right angles to the vertical frame, and is spaced therefrom so as to form a spout 37 The vertical members of the frame are provided with a metal portion 38. The screenings passing through the screen 26, will drop into a reoelving hopper 39, formed by the inner wall 32, of the auxiliary chute 31,- and the member 38, above referred to. From this hopper 39, the screenings pass into the spout 37. A pivoted discharge spout 40, is connected at the lower end of the spout 37,and when turned to vertical position, as shown in Fig. III, serves to close the lower end of the spout 37 When, however, this pivoted spout 40, is'turned to the position shown in Fig. I, the contents of the spout 37 will be delivered through the pivoted spout.

The receiving chute 25, is so positioned relative to the buckets mounted on the car rier, that the contents of the buckets as they pass about the shaft 5, at the upper end of the frame, will be dumped on to the screen at the bottom of the chute 25. As the coal or other material rolls down the screen 26, the dirt and dust and finer particles will pass through the screen, while the coal or other material may be discharged through the spout 29, into a wagon, or may pass into the auxiliary chute 31, and be delivered through the spout 34, to the bags or other receptacles.

In order to assist in supporting the elevator on the axle, we have provided a pivoted bracket 41, which is pivoted at 42, to the mainframe. Said bracket at its free end is formed with journals to receive an auxiliary supporting wheel 43. A rod 44, is pivoted at 45, to the bracket, and is threaded as at 46, adjacent its upper end to engage a nut 47. The nut 47, carries a hand wheel 48, whereby said nut may be turned. This nut 47, is located between a cross bar 49, and a retaining bar 50, which are carried by pivots 51, attached to angle brackets 52, bolted to the main frame. This allows the bars 49, and 50, and also the threaded nut 47 ,and hand wheel 48. to swing to accommodate the various angular positions of the rod 44, as the bracket is swung about its pivotal support.

In order to facilitate the movement of the elevator on its main supporting wheels, we have provided two handles 53, which are pivoted to a cross or tie rod 54. This rod is slightly bent at its center, to prevent the interference with the motion of the rod 44, already mentioned. The handles are extended beyond their pivotal points as indicated at 55, and are secured by means of removable pins 57 to brackets 56, depending from the main frame.

When the pins 57, are removed, the handles may be swung to the vertical position shown in dotted lines in Fig. I, to be out of the way of a wagon which may be positioned directly beneath the overhanging spout 25, to receive the coal or other material therefrom. When these handles are turned to horizontal position, and fixed relative to the frame, the frame may be tilted or turned about the axis of the axle, so as to raise the auxiliary supporting wheel 43, from the ground, and the entire elevator readily moved about on its two main supporting Wheels. The elevator will be manipulated, as above noted, and positioned relative to the pile which it is desired to lift and convey to the wagon or receiving receptacles, and after it is properly placed relative to the pile, the wheels may be blocked if desired. The motor for driving the conveyer is then set in operation. In order to control the movement of the conveyer, we have provided a friction clutch 57, which is manipulated by a two-arm lever 58, pivoted at 59, to a bracket .arm 60, carried by the main frame. Said lever 58, is formed with an arm 61, which is readily accessible to an operator when in the wagon receiving the coal, and also with an arm 62, which is readily accessible to the operator when standing on the ground. In order to feed the receiving end of the conveyer into the pile without shifting the position of the main supporting wheels of the elevator, all that is necessary is to manipulate the hand wheel 48, which will swing the conveyer about the axis of the axle, and thus throw the lower end of the conveyer farther into the pile.

In order to further steady the frame, we have provided the same with braces 63, which are connected at their upper, ends to the frame, and at their lower ends to the supporting axle at points adjacent the supporting wheels 23, therefor.

It is obvious that minor changes in the details of construction and the arrangement of parts may be made, without departing from the spirit of the invention as set forth in the appended claim.

Having thus described our invention, we claim:

An elevator including in combination, an axle, supporting wheels for said axle, horizontal beams mounted on said axle, vertical beams carried by said axle and inclined beams supported by said horizontal beams and said vertical beams, said inclined beams extending from a point at one side of said axle to a point the other side thereof, an endless conveyer mounted on said inclined beams, means connected to said horizontal beams for engaging the ground, and devices whereby said ground-engaging means may be adjusted for tilting said horizontal beams and varying the position of the lower end of the conveyer relative to the ground.

Intestimony whereof, we have hereunto signed our names at Philadelphia, Pennsylvania, this twenty-third day of April,

GHARLES G. PFEIFFER. GEORGEW. PARKER, JR. Witnesses:

JAMES H. BELL, E. L. FULLERTON. 

